
Parallel Condensing Units
On parallel condensing units, temperature control is typically provided by an EPR valve.
Evaporator Pressure Regulator (EPR) Valve
The EPR valve can be used to control case temperature. This is accomplished by adjusting the
valve to the desired flow to maintain the case temperature. Refer to manual 31E08001,
Installation and Operation Manual for Parallel Compressor Units, for a complete explanation of
the expansion valve.
Thermostat and Liquid Line Solenoid
The thermostat and liquid line solenoid can be used to control case temperature. This is
accomplished by adjusting the liquid flow rate based on the case temperature. Refer to manual
31E08001, Installation and Operation Manual for Parallel Compressor Units, for a complete
explanation of the thermostat and liquid line solenoid.
Solid State Low Pressure Switches on Compressor
When installed on the compressor, these switches are used to control case temperature. Refer to
manual 31E08001, Installation and Operation Manual for Parallel Compressor Units, for a
complete explanation of the solid state low pressure switches on the compressor.
Electrical
The following paragraphs explain the case electrical requirements and connections required for
proper case operation.
NEC and Local Code Compliance
Caution:
Ensure all National Electric Codes (NEC) and local electric codes are
understood and followed. Failure to follow all existing codes may result in equipment
damage and may void the equipment warranty.
All field installed wiring must comply with the National Electric Codes (NEC) and local codes.
Before installing any wiring, verify that all NEC and local codes are understood and properly
followed.
Electrical
Raceway
An electrical raceway is provided with each case for wiring your fan, anti-sweat heaters, and
light circuits for case to case without using conduit. This applies, of course, when the front
bumper is properly secured into position. This is an approved method by the Underwriters
Laboratories however, must be in accordance with local and national electrical codes.
UNIT INSTALLATION
30
Содержание 6RLG3
Страница 3: ...2 6 2006 2 Addendum Ballast Relocation 2 ...
Страница 5: ...2 6 2006 4 Addendum Ballast Relocation Wiring Diagram Both Canopy and Raceway 4 ...
Страница 6: ...2 6 2006 5 Addendum Ballast Relocation Wiring Diagram for Canopy Light 5 ...
Страница 9: ...Plan Views and Cross Sections D6L D6 D6H 8 ...
Страница 10: ...D6RL D6R 9 ...
Страница 11: ...QD6 10 ...
Страница 12: ...HQD6 8 11 16 44 1 16 39 11 16 4 23 5 8 6 80 9 16 43 1 8 32 1 16 59 13 16 50 1 16 22 15 5 8 L OAD LIMIT 11 ...
Страница 34: ...D6 Electrical Model Table QD6 1 3 04 Through D6H 1 3 6 UNIT INSTALLATION 33 ...
Страница 35: ...D6 Electrical Model Table D6H 1 3 6 Through D6R 1 3 4 UNIT INSTALLATION 34 ...
Страница 36: ...D6 Electrical Model Table D6R 1 3 4 Through D6RL G 1 6 UNIT INSTALLATION 35 ...
Страница 39: ...Wiring Diagram UNIT INSTALLATION 38 ...
Страница 40: ...Wiring Diagram Canopy One 1 and Two 2 Light Rows UNIT INSTALLATION 39 ...
Страница 41: ...Wiring Diagram Canopy Two 2 and Three 3 Light Rows UNIT INSTALLATION 40 ...
Страница 42: ...Wiring Diagram Canopy Two 2 Light Rows and Nose Light UNIT INSTALLATION 41 ...
Страница 43: ...Wiring Diagram Off Cycle Defrost UNIT INSTALLATION 42 ...